CN204625433U - The reactor of a kind of chemical-biological combined removal nitre nitrogen and ammonia nitrogen - Google Patents
The reactor of a kind of chemical-biological combined removal nitre nitrogen and ammonia nitrogen Download PDFInfo
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- CN204625433U CN204625433U CN201520210819.0U CN201520210819U CN204625433U CN 204625433 U CN204625433 U CN 204625433U CN 201520210819 U CN201520210819 U CN 201520210819U CN 204625433 U CN204625433 U CN 204625433U
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- short
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- cut denitrification
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Abstract
The utility model discloses the reactor of a kind of chemical-biological combined removal nitre nitrogen and ammonia nitrogen.Water distribution area establishes shore pipe, backflow-water inlet pipe from top to bottom; Short-cut denitrification district establishes H in lower end
2inlet pipe, communicate with composite porous ceramic catalysis post group, short-cut denitrification district establishes H in upper end
2circulation tube; Be connected by flange between short-cut denitrification district with Anammox district, if three hole dividing plates, plate be equipped with three catheters; Anammox district establishes supporting screening plate in bottom, top handicapping mud sieve plate; Anammox district is connected by flange with disengaging zone, if a diplopore dividing plate, plate is equipped with thrust-augmenting nozzle and mud guiding tube respectively; Disengaging zone sidewall is provided with mud discharging mouth, overflow groove and rising pipe from top to bottom successively, and disengaging zone central authorities establish economic benefits and social benefits triphase separator, and middle part sidewall establishes return line, and dismountable fluid-tight gas skirt is established on top.It is fast that the utility model has speed of reaction, NO
2 -selectivity is high, without the need to advantages such as additional carbons; If H
2the recycle system, realizes resources effective utilization.
Description
Technical field
The utility model relates to denitrification reactor.Particularly relate to the reactor of a kind of chemical-biological combined removal nitre nitrogen and ammonia nitrogen.
Background technology
" 2013 China Environmental State Bulletin " shows, and ammonia nitrogen in waste water quantity discharged reaches 245.7 ten thousand tons.Lake " wawter bloom " caused by pollution and coastal waters " red tide " occur again and again, have jeopardized all conglomeraties such as agricultural, fishery, tourism, and have constituted a serious threat to drinking water hygiene and food safety.The discharge of waste water nitrogen is the important reason of body eutrophication, and denitrogenation of waste water has become the task of top priority of environment protection.
Compared with traditional denitrification process, Anammox (Anammox) technique has that volumetric efficiency is high, oxygen supply saving energy, sludge yield are few, do not need the advantages such as additional carbon, is specially adapted to the denitrogenation processing of high-concentration ammonia nitrogenous wastewater.2002, first productivity Anammox reactor is in putting into operation in Rotterdam, The Netherlands municipal sewage plant in the world, for the treatment of anaerobic sludge Digestive system, its volume nitrogen removes speed up to 9.5kg/ (m3d), demonstrates tempting application prospect.
But for the control simultaneously containing nitre nitrogen waste water, single Anammox technique is difficult to prove effective.With regard to Anammox reaction, ammonia and nitrite reaction about produce 10%NO
3 -(1), complete denitrogenation cannot be completed.Therefore, the combination process developing removal of ammonia and nitrogen and nitre nitrogen has important practical significance.
NH
4 ++1.32NO
2 -+0.066HCO
3 -+0.13H
+→1.02N
2+0.26NO
3 -+
0.066CH
2O
0.5N
0.15+2.03H
2O (1)
Based on Anammox reaction, in conjunction with chemical catalysis short-cut denitrification technique (formula 2), chemical-biological combined removal nitre nitrogen and ammonia nitrogen technique can be built, under anaerobic realize the simultaneous removing of nitre nitrogen and ammonia nitrogen.This technique is with H
2for electron donor, with porous ceramics (α-Al
2o
3) film is support of the catalyst, utilizes metal catalyst Pd-Cu, realizes chemical catalysis short-cut denitrification, without the need to additional carbon, while completing and removing nitre nitrogen and ammonia nitrogen, solves the carbon resource shortage problem in denitrification denitrogenation.This denitrification process has efficiently, low consumption, the denitrogenation advantage such as completely.
Summary of the invention
The purpose of this utility model overcomes the deficiencies in the prior art, provides the reactor of a kind of chemical-biological combined removal nitre nitrogen and ammonia nitrogen.
The reactor of chemical-biological combined removal nitre nitrogen and ammonia nitrogen comprises water distribution area, short-cut denitrification district, Anammox district and disengaging zone from top to bottom; Water distribution area establishes shore pipe, backflow-water inlet pipe from top to bottom successively; Short-cut denitrification district is directly connected with water distribution area, and short-cut denitrification district establishes H in lower end
2inlet pipe, communicates with composite porous ceramic catalysis post group, and side establishes bracing frame to fix composite porous ceramic catalysis post group, and H is established in upper end
2circulation tube, external H
2recovery pump, and and H
2inlet pipe is connected; Short-cut denitrification district is connected by flange with Anammox district, and establishes three hole dividing plates, plate is equipped with three catheters; Bottom, Anammox district is provided with supporting screening plate, top is provided with resistance mud sieve plate, and Anammox district is connected by flange with disengaging zone, separately establishes a diplopore dividing plate, plate is equipped with thrust-augmenting nozzle and mud guiding tube respectively; Disengaging zone sidewall establishes mud discharging mouth, overflow groove and rising pipe from top to bottom successively, and disengaging zone central authorities establish economic benefits and social benefits triphase separator, and in the middle part of economic benefits and social benefits triphase separator, sidewall establishes return line, and through disengaging zone sidewall, dismountable fluid-tight gas skirt is established on top.
Described short-cut denitrification district and the sectional area ratio in Anammox district are 1:1, and aspect ratio is 1:(1 ~ 1.5), the volume of composite porous ceramic catalysis post group accounts for 1/4 ~ 1/2 of short-cut denitrification district cumulative volume.
Described H
2inlet pipe UNICOM H
2aeration is responsible for, and stretches into reactor cross-section circle centre position, by nine H
2aeration branch pipe is connected with nine cylinder shape porous ceramics catalysis posts, the diameter of porous ceramics catalysis post is 1/8 ~ 1/4 of short-cut denitrification district diameter of section, be highly 1/3 ~ 2/3 of short-cut denitrification district height, evenly distributed in three row three column matrix formulas, capital is closed, its support layer material is porosity 30%-40%, and mean pore size is at the α-Al of 1 μm-100 μm
2o
3.
The wall outer surface of described porous ceramics catalysis post is the bimetal Pd-Cu catalyzer rete of even spread, and thickness is 1nm-100 μm.
The internal diameter in described catheter, thrust-augmenting nozzle, mud guiding tube and cross section, Anammox district is than being 1:1:1:(4 ~ 8), length is than being 1:1:(0.9 ~ 1): (6 ~ 9); Catheter is that equilateral triangle is distributed on three hole dividing plates, and the length stretching into short-cut denitrification district is downwards 7/8 ~ 9/10 of its overall length.
Described H
2circulation tube and horizontal plane angle are 35 ° ~ 65 °, H
2circulation nozzle diameter is less than 30mm, and the distance apart from three hole dividing plates is 1/5 ~ 1/2 of catheter overall length, external H
2recovery pump and and H
2inlet pipe is connected.
Described supporting screening plate stacks by 3 ~ 5 layers of thin sieve plate is parallel, and the sieve of supporting screening plate selects specification to be 6 order ~ 10 orders, and aperture is 1700 μm ~ 3350 μm; Resistance mud sieve plate is individual layer sieve plate, and it selects specification to be 12 order ~ 20 orders, and aperture is 830 μm ~ 1400 μm.
Described economic benefits and social benefits triphase separator is round tube type, and the ratio of its internal diameter and disengaging zone internal diameter is 1:2; The height that economic benefits and social benefits triphase separator exposes liquid level part is 1/3 ~ 1/6 of its total height, and top is provided with fluid-tight gas skirt.
Described fluid-tight gas skirt is round tube type, and the ratio of its internal diameter and economic benefits and social benefits triphase separator internal diameter is 1:(1.01 ~ 1.05); The height that fluid-tight gas skirt exposes liquid level part is 2/3 ~ 4/5 of its total height, and its bottom is positioned in the middle part of overflow notch.
The utility model compared with prior art has the following advantages: 1) chemical catalysis short-cut denitrification, and reaction efficiency is fast, generates NO
2 -selectivity is high, and without the need to additional carbon.2) H is set
2, NO
3 -reflux, the efficiency utilization energy.3) adopt supporting screening plate, increase anaerobic grain sludge and stay the time holding of Anammox district, maintain reactor Effec-tive Function; Adopt resistance mud sieve plate, reduce the loss of anaerobic grain sludge floating, ensure effluent quality.4) economic benefits and social benefits triphase separator is set, is effectively separated gas, liquid, solid three-phase.
Accompanying drawing explanation
Fig. 1 is the structure of reactor schematic diagram of chemical-biological combined denitrification;
Fig. 2 is composite porous ceramic catalysis post group structural representation of the present utility model;
Fig. 3 is three hole dividing plate cross-sectional views of the present utility model;
Fig. 4 is diplopore dividing plate cross-sectional view of the present utility model;
Fig. 5 is porous ceramics catalysis post longitudinal section of the present utility model;
In figure: shore pipe 1, backflow-water inlet pipe 2, H
2inlet pipe 3, bracing frame 4, composite porous ceramic catalysis post group 5, H
2aeration supervisor 5-1, H
2aeration branch pipe 5-2, porous ceramics catalysis post 5-3, bimetal Pd-Cu catalyzer rete 5-3-1, α-Al
2o
3supporting layer 5-3-2, H
2recovery pump 6, H
2circulation tube 7, catheter 8, three hole dividing plate 9, supporting screening plate 10, resistance mud sieve plate 11, mud guiding tube 12, diplopore dividing plate 13, mud discharging mouth 14, thrust-augmenting nozzle 15, return line 16, economic benefits and social benefits triphase separator 17, overflow groove 18, rising pipe 19, fluid-tight gas skirt 20.
Embodiment
As Figure 1-5, the reactor of chemical-biological combined removal nitre nitrogen and ammonia nitrogen comprises water distribution area A, short-cut denitrification district B, Anammox district C and disengaging zone D from top to bottom; Water distribution area is provided with shore pipe 1, backflow-water inlet pipe 2 from top to bottom successively; Short-cut denitrification district B is directly connected with water distribution area A, and short-cut denitrification district establishes H in B lower end
2inlet pipe 3, communicate with composite porous ceramic catalysis post group 5, bracing frame 4 is established on side, and fixing composite porous ceramic catalysis post group 5, H is established in upper end
2circulation tube 7, external H
2recovery pump 6 and and H
2inlet pipe 3 is connected, and is connected, and establishes three hole dividing plates 9, plate is equipped with three catheters 8 between short-cut denitrification district B with Anammox district C by flange; Anammox district establishes C bottom supporting screening plate 10, top handicapping mud sieve plate 11, and Anammox district C is connected by flange with disengaging zone D, separately establishes a diplopore dividing plate 13, plate is equipped with respectively thrust-augmenting nozzle 15 and mud guiding tube 12; Disengaging zone D sidewall is provided with mud discharging mouth 14, overflow groove 18 and rising pipe 19 from top to bottom successively, disengaging zone D central authorities establish economic benefits and social benefits triphase separator 17, in the middle part of economic benefits and social benefits triphase separator 17, sidewall establishes return line 16, and through disengaging zone D sidewall, dismountable fluid-tight gas skirt 20 is established on top.
The sectional area ratio of described short-cut denitrification district B and Anammox district C is 1:1, and aspect ratio is 1:(1 ~ 1.5), the volume of composite porous ceramic catalysis post group 5 accounts for 1/4 ~ 1/2 of short-cut denitrification district B cumulative volume.
Described H
2inlet pipe 3 UNICOM H
2aeration supervisor 5-1, stretches into reactor cross-section circle centre position, by nine H
2aeration branch pipe 5-2 is connected with nine cylinder shape porous ceramics catalysis post 5-3, the diameter of porous ceramics catalysis post 5-3 is 1/4 ~ 1/8 of short-cut denitrification district B diameter of section, be highly 1/3 ~ 2/3 of short-cut denitrification district B height, evenly distributed in three row three column matrix formulas, capital is closed, and its supporting layer 5-3-2 material is the α-Al of porosity 30%-40%, mean pore size 1 μm-100 μm
2o
3.
The wall outer surface of described porous ceramics catalysis post 5-3 is the bimetal Pd-Cu catalyzer rete 5-3-1 of even spread, and thickness is 1nm-100 μm.
The internal diameter in described catheter 8, thrust-augmenting nozzle 15, mud guiding tube 12 and C cross section, Anammox district is than being 1:1:1:(4 ~ 8), length is than being 1:1:(0.9 ~ 1): (6 ~ 9); Catheter 8 is distributed on three hole dividing plates 9 in equilateral triangle, and the length stretching into short-cut denitrification district B is downwards 7/8 ~ 9/10 of its overall length.
Described H
2circulation tube 7 and horizontal plane angle are 35 ° ~ 65 °, H
2circulation tube 7 mouthfuls of diameters are less than 30mm, and the distance apart from three hole dividing plates 9 is 1/5 ~ 1/2, external H of catheter 8 overall length
2recovery pump 6 and and H
2inlet pipe 3 is connected.
Described supporting screening plate 10 stacks by 3 ~ 5 layers of thin sieve plate is parallel, and the sieve of supporting screening plate 10 selects specification to be 6 order ~ 10 orders, and aperture is 1700 μm ~ 3350 μm; Resistance mud sieve plate 11 is individual layer sieve plate, and it selects specification to be 12 order ~ 20 orders, and aperture is 830 μm ~ 1400 μm.
Described economic benefits and social benefits triphase separator 17 is round tube type, and the ratio of its internal diameter and disengaging zone D internal diameter is 1:2; The height that economic benefits and social benefits triphase separator 17 exposes liquid level part is 1/3 ~ 1/6 of its total height, and top is provided with fluid-tight gas skirt 20.
Described fluid-tight gas skirt 20 is round tube type, and the ratio of its internal diameter and economic benefits and social benefits triphase separator 17 internal diameter is 1:(1.01 ~ 1.05); The height that fluid-tight gas skirt 20 exposes liquid level part is 2/3 ~ 4/5 of its total height, and its bottom is positioned at overflow groove 18 mouthfuls of middle parts.
The utility model can build with synthetic glass and steel plate, comprises water distribution area, short-cut denitrification district, Anammox district and disengaging zone from top to bottom successively.Reaction solution enters short-cut denitrification district through water distribution area, fully contacts with the composite porous ceramic catalysis post group in short-cut denitrification district, simultaneously H
2pass through H
2inlet pipe is evenly transported in the cavity in each porous ceramics catalysis post, because catalysis column top is closed, and H
2overflow from catalysis post sidewall hole, with response matrix at catalysis post outer layer, under the effect of catalysis outer surface of column rete Pd-Cu metal catalyst, the nitre nitrogen in response matrix is reduced to nitrite nitrogen.Meanwhile, unreacted H
2by the barrier effect of three hole dividing plates, be accumulated in top, short-cut denitrification district and form air chamber.In operational process, air chamber bottom should all the time lower than H
2the circulation mouth of pipe but higher than catheter bottom, the H accumulated in air chamber
2pass through H
2circulation tube is through H
2recovery pump passes into H after collecting again
2inlet pipe, finally gets back to lower end, short-cut denitrification district, realizes H
2recycle.Through the reacted reaction solution in short-cut denitrification district, enter Anammox reaction zone through catheter, the anaerobic grain sludge in Bing Yugai district fully contacts, and makes nitrite nitrogen and ammonia nitrogen reaction produce N
2.Nitre nitrogen in product is back to water distribution area with the return line of reaction solution through disengaging zone, continues to participate in short-cut denitrification reaction.This design breaches the bottleneck that Anammox reaction cannot realize complete denitrogenation to a great extent.The supporting screening plate of bottom, Anammox reaction zone, plays the effect supporting anaerobic ammonium oxidation granular sludge layer, improves sludge concentration, maintains reactor Effec-tive Function.The resistance mud sieve plate on top, the anaerobic ammonium oxidation granular sludge chopping that can will float, makes the bubble of granule sludge inside overflow, recovers settling property, reduce Mud up-floating and run off.Reaction solution enters disengaging zone and carries out gas, liquid, solid three phase separation behind Anammox reaction zone.N
2upwards discharge reactor through top, disengaging zone fluid-tight gas skirt, submerge Anammox reaction zone liquid level in fluid-tight gas skirt bottom, to realize fluid-tight, stops and generate escaping of gas, unnecessary water outlet is discharged by rising pipe through overflow groove, and the anaerobic grain sludge of floating is got rid of by mud discharging mouth.
Claims (9)
1. a reactor for chemical-biological combined removal nitre nitrogen and ammonia nitrogen, is characterized in that reactor comprises water distribution area (A), short-cut denitrification district (B), Anammox district (C) and disengaging zone (D) from top to bottom; Water distribution area (A) is provided with shore pipe (1), backflow-water inlet pipe (2) from top to bottom successively; Short-cut denitrification district (B) is directly connected with water distribution area (A), and H is established in short-cut denitrification district (B) lower end
2inlet pipe (3), communicates with composite porous ceramic catalysis post group (5), and side establishes bracing frame (4) to fix composite porous ceramic catalysis post group (5), and H is established in upper end
2circulation tube (7), external H
2recovery pump (6) and H
2inlet pipe (3) is connected; Short-cut denitrification district (B) is connected by flange with Anammox district (C), if three hole dividing plates (9), plate is equipped with three catheters (8); Supporting screening plate (10), top handicapping mud sieve plate (11) are established in Anammox district (C) bottom, Anammox district (C) is connected by flange with disengaging zone (D), separately establish a diplopore dividing plate (13), plate is equipped with respectively thrust-augmenting nozzle (15) and mud guiding tube (12); Disengaging zone (D) sidewall establishes mud discharging mouth (14), overflow groove (18) and rising pipe (19) from top to bottom successively, disengaging zone (D) central authorities establish economic benefits and social benefits triphase separator (17), economic benefits and social benefits triphase separator (17) middle part sidewall establishes return line (16), and through disengaging zone (D) sidewall, dismountable fluid-tight gas skirt (20) is established on top.
2. the reactor of a kind of chemical-biological combined removal nitre nitrogen according to claim 1 and ammonia nitrogen, it is characterized in that described short-cut denitrification district (B) is 1:1 with the sectional area ratio in Anammox district (C), aspect ratio is 1:(1 ~ 1.5), the volume of composite porous ceramic catalysis post group (5) accounts for 1/4 ~ 1/2 of short-cut denitrification district (B) cumulative volume.
3. the reactor of a kind of chemical-biological combined removal nitre nitrogen according to claim 1 and ammonia nitrogen, is characterized in that described H
2inlet pipe (3) UNICOM H
2aeration supervisor (5-1), stretches into reactor cross-section circle centre position, by nine H
2aeration branch pipe (5-2) is connected with nine cylinder shape porous ceramics catalysis post (5-3), the diameter of porous ceramics catalysis post (5-3) is 1/8 ~ 1/4 of short-cut denitrification district (B) diameter of section, be highly 1/3 ~ 2/3 of short-cut denitrification district (B) height, evenly distributed in three row three column matrix formulas, capital is closed, and its supporting layer (5-3-2) material is the α-Al of porosity 30%-40%, mean pore size 1 μm-100 μm
2o
3.
4. the reactor of a kind of chemical-biological combined removal nitre nitrogen according to claim 1 and ammonia nitrogen, it is characterized in that the wall outer surface of described porous ceramics catalysis post (5-3) is bimetal Pd-Cu catalyzer rete (5-3-1) of even spread, thickness is 1nm-100 μm.
5. the reactor of a kind of chemical-biological combined removal nitre nitrogen according to claim 1 and ammonia nitrogen, it is characterized in that described catheter (8), thrust-augmenting nozzle (15), mud guiding tube (12) and Anammox district (C) cross section internal diameter than being 1:1:1:(4 ~ 8), length is than being 1:1:(0.9 ~ 1): (6 ~ 9); Catheter (8) is distributed in equilateral triangle on three hole dividing plates (9), and the length stretching into short-cut denitrification district (B) is downwards 7/8 ~ 9/10 of its overall length.
6. the reactor of a kind of chemical-biological combined removal nitre nitrogen according to claim 1 and ammonia nitrogen, is characterized in that described H
2circulation tube (7) and horizontal plane angle are 35 ° ~ 65 °, H
2circulation tube (7) mouth diameter is less than 30mm, and the distance apart from three hole dividing plates (9) is 1/5 ~ 1/2, external H of catheter (8) overall length
2recovery pump (6) and H
2inlet pipe (3) is connected.
7. the reactor of a kind of chemical-biological combined removal nitre nitrogen according to claim 1 and ammonia nitrogen, it is characterized in that described supporting screening plate (10) stacks by 3 ~ 5 layers of thin sieve plate is parallel, the sieve of supporting screening plate (10) selects specification to be 6 order ~ 10 orders, and aperture is 1700 μm ~ 3350 μm; Resistance mud sieve plate (11) is individual layer sieve plate, and it selects specification to be 12 order ~ 20 orders, and aperture is 830 μm ~ 1400 μm.
8. the reactor of a kind of chemical-biological combined removal nitre nitrogen according to claim 1 and ammonia nitrogen, it is characterized in that described economic benefits and social benefits triphase separator (17) is round tube type, the ratio of its internal diameter and disengaging zone (D) internal diameter is 1:2; The height that economic benefits and social benefits triphase separator (17) exposes liquid level part is 1/3 ~ 1/6 of its total height, and top is provided with fluid-tight gas skirt (20).
9. the reactor of a kind of chemical-biological combined removal nitre nitrogen according to claim 1 and ammonia nitrogen, it is characterized in that described fluid-tight gas skirt (20) is round tube type, the ratio of its internal diameter and economic benefits and social benefits triphase separator (17) internal diameter is 1:(1.01 ~ 1.05); The height that fluid-tight gas skirt (20) exposes liquid level part is 2/3 ~ 4/5 of its total height, and its bottom is positioned in the middle part of overflow groove (18) mouth.
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201520210819.0U CN204625433U (en) | 2015-04-09 | 2015-04-09 | The reactor of a kind of chemical-biological combined removal nitre nitrogen and ammonia nitrogen |
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|---|---|---|---|
| CN201520210819.0U CN204625433U (en) | 2015-04-09 | 2015-04-09 | The reactor of a kind of chemical-biological combined removal nitre nitrogen and ammonia nitrogen |
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| Publication Number | Publication Date |
|---|---|
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ID=54044480
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|---|---|---|---|
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Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104817223A (en) * | 2015-04-09 | 2015-08-05 | 浙江大学 | Chemical-biological combined ammonium nitrogen and ammonia nitrogen removal reactor |
| CN114368835A (en) * | 2022-01-13 | 2022-04-19 | 厦门大学 | Full autotrophic biological denitrification device and method |
-
2015
- 2015-04-09 CN CN201520210819.0U patent/CN204625433U/en not_active Withdrawn - After Issue
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104817223A (en) * | 2015-04-09 | 2015-08-05 | 浙江大学 | Chemical-biological combined ammonium nitrogen and ammonia nitrogen removal reactor |
| CN104817223B (en) * | 2015-04-09 | 2016-08-17 | 浙江大学 | Chemical-biological combined removal nitrate nitrogen and the reactor of ammonia nitrogen |
| CN114368835A (en) * | 2022-01-13 | 2022-04-19 | 厦门大学 | Full autotrophic biological denitrification device and method |
| CN114368835B (en) * | 2022-01-13 | 2023-09-22 | 厦门大学 | Full autotrophic denitrification method |
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|---|---|---|---|
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| GR01 | Patent grant | ||
| AV01 | Patent right actively abandoned |
Granted publication date: 20150909 Effective date of abandoning: 20160817 |
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| C25 | Abandonment of patent right or utility model to avoid double patenting |